Maniscalco Geologic Time 01: Geologic Time Scale Reflection Questions 1. What scale did you use to make your model? The scale I used to make my model was 1:10. 2. How did you decide to use this scale? Show your calculations. By using the scale calculator‚ that was provided‚ I arrived at the 1:10 scale. I learned that using a scale calculator to “scale down” may take multiple attempts. I tried a few times before arriving at the 1:10 scale. First‚ I entered the scaling factor of 1:10‚ for 1/10 scale. Next
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Report *Geologic time* Aleks Ch. # 8 Date: 24/07/2013 Introduction The age of Earth is as vast in time as the universe is vast in space. It is not easy to really get a "feel" for 4‚600 million years! One way to try to get a "feel" for how big it is‚ is to break the number down into smaller pieces that perhaps we can understand. Plants and animals have changed many times‚ from amoebas to dinosaurs to people. The age of Earth is so long compared to all periods of time that we
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Associate Level Material Mary Miles Geologic Time Worksheet Use the following table to compare ways of evaluating geologic time. Your description‚ similarities‚ and differences must each be at least 50 words. |Time Evaluation Method |Description |Advantages of this Method |Disadvantages of this Method | |Relative dating |Relative dating is the process |There are a few advantages of |The disadvantage to relative
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Geologic Time Scale Introduction Understanding geologic time is critical to relating events in Earth’s history to those of today. Scientists use several forms of the geologic time scale to classify the age of objects and to become familiar with other events occurring simultaneously. In this lesson you will: · Examine how the geologic time scale summarizes Earth’s history · Analyze physical and biological changes that have occurred over time · Identify major events that occurred in geologic
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Associate Level Material Geologic Time Worksheet Use the following table to compare ways of evaluating geologic time. Your description‚ similarities‚ and differences must each be at least 50 words. |Time Evaluation Method |Description |Advantages of this Method |Disadvantages of this Method | |Relative dating |Is a dating method by comparing |Quick and easy‚ uses current |No as accurate and can have | |
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Geology 1203 Earth history Assignment: relative time Preamble: Understanding Earth history involves determining the sequence of geologic events which occurred over immense spans of time. The geological time scale that we use today was first developed in the 1800’s and is constantly being revised as our understanding improves. Geologists deal with time in two different ways: Relative Time - the occurrence of events is determined relative to one another (from oldest to most recent). This
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Geological Time Unit 2 Test /44 Multiple choice: Choose the best answer for each question /13 According to Earth scientists‚ how old is the Earth? 4.6 million years 3.5 million years 4.6 billion years 3.5 billion years When did oxygen first form in the atmosphere according to Earth scientists? 4.6 billion years ago 3.5 billion years ago 2 billion years ago 1 billion years ago Which life form came first according to the Geological Time Scale? Dinosaurs
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Earth Science Geologic History Test Study Guide 1. What is the study of the universe? 2. Define steady-state theory. 3. Explain the Big-Bang theory. 4. What is cosmic background radiation? 5. What theory does cosmic background radiation support? 6. How old is the universe? 7. When looking at undisturbed rock layers‚ where is the oldest layer located? The youngest? 8. Define half-life. 9. What is the general shape of a half-life graph? 10. Define unconformity
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the plants died and then the dinosaurs. Uniformi‐tarianism (James Hu on‚ late 1700s) ‐ He proposed that the same processes that are at work today were at work in the past. Summarized by “THE PRESENT IS THE KEY TO THE PAST.” A gradual continuous change that accumulates with time for thousands and millions of years causing “significant change”. Uniformitarianism is a basic foundation of modern geology. Age of the Earth Estimated age for the Earth and the rest of the solar system is about 4.55 billion years. The oldest
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Telling Geologic Time Putting it in perspective Determining geological ages • Relative age dates – placing rocks and events in their proper sequence of formation • Numerical dates – specifying the actual number of years that have passed since an event occurred (known as absolute age dating) Figure 1-15 (p. 16) Geologic Time Scale. Uniformitarianism The physical‚ biological and chemical principles acting on the Earth in the present also acted on the Earth in the past
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